We have a new Guided Walkthrough (GWT) that is available which helps identify and resolve issues relating to Slow copying from a shared folder over a network. If you experience issues with Slow copying in Windows then this is a great place to start: 3033211...

Hi folks Gopal here again from the Microsoft Networking Escalation team. The article below provides steps on how a Hyper-V virtual machine running on Windows Server 2012/2012 R2 can be used to capture mirrored traffic that is hitting the Hyper-V host...

DNS servers that are acting as caching resolvers send queries to the authoritative DNS servers. One of the possible responses that an authoritative server can send is a 'referral response' . The most common scenario for an authoritative server...

In this two-part blog post set, we are going to describe the design of the networking management system we use introduced in Windows 2012. Before Windows Server 2012 the managing of host settings (IP addresses, routes, firewall rules, etc.) as well as...

Hi! My name is Gopal and I work with the Microsoft Networking Escalation team. I write this blog to discuss an interesting scenario that we faced recently with our troubleshooting experiences here with QoS and DSCP, which I hope will be able to help others...

There have been several reports of networking and stability issues on Windows Server 2012 and Windows Server 2012 R2 when deployed on hosts equipped with Emulex NICs. These issues arise when VMQ is enabled. The typical symptoms include the loss of network...

This article details the name resolution performance of the windows DNS Server 2012 R2, when deployed in a strictly authoritative mode on which recursion has been disabled and root hints have been removed.
Machine Configuration
The tests were performed...

In my last posts about VMQ (virtual machine queues), VMQ Deep Dive, 1 of 3 , I tried to give readers a thorough understanding on the technology and why it was needed. Unfortunately, I still feel like there’s a piece missing around troubleshooting suspected...

To make VPN profile management easier for end user, there is a new intuitive modern user interface to manage VPN profiles in Windows 8.1. This new interface resides in PC Settings and provides a unified experience to create, edit and remove native as...

Introduction At this point I’m hoping everyone has had the opportunity to read my two previous blogs on VMQ, VMQ Deep Dive 1 and VMQ Deep Dive 2 , and are more knowledgeable about the offload and when to use it. In this last post of this series, I want...

Windows 8.1 allows a VPN client to automatically connect to the corporate network. From end user perspective, access to corporate resources works just like when he is inside the corporate network.
Whenever you launch a corporate application a VPN connection...

This blogs describes in detail the concepts of multi-tenant site-to-site (S2S) Virtual Private Network (VPN) introduced in what’s New in 2012 R2: Hybrid Networking blog . In this blog, we will examine how requirements of two organizations Woodgrove Bank...

Introduction
In my last blog post of this series, ‘ VMQ Deep Dive, 1 of 3 ,’ I went into detail on why we implemented VMQ and how to view the VMQ settings on the adapter to verify that it was configured properly. In this blog post I am...

Windows Server Gateway in Windows Server 2012 R2 is a key element of Hybrid Networking , which enables enterprises to connect to service providers via site-to-site VPN. This blog describes a different use case. It shows how Windows Server gateway can...

Cloud scale architectures require highly scalable core infrastructure services. For instance, gateways that provide Network Address Translation or Site-to-Site VPN capabilities for the datacenter must be able to support a large number of tenants. This...

This post is a part of the nine-part “What’s New in Windows Server & System Center 2012 R2” series that is featured on Brad Anderson’s In the Cloud blog. Today’s blog post covers an overview of networking investments...

This post is a part of the nine-part “What’s New in Windows Server & System Center 2012 R2” series that is featured on Brad Anderson’s In the Cloud blog. Today’s blog post covers new features in Hyper-V Network Virtualization in Windows Server...

This post is a part of the nine-part “ What’s New in Windows Server & System Center 2012 R2 ” series that is featured on Brad Anderson’s In the Cloud blog. Today’s blog post covers Virtual RSS and how it applies to the...